Although you sound like you're in a cat friendly area, I'm glad you're keeping Casey in now. We had a neighbour poison my cat Clyde with anti-freeze also. I think that cats love to be outside but it really is much safer. When I raised Bengal cats, we built a large 16' x 16' x 8' high run for them. We only have our girl Sidney now, she's 15 now but she loves going into the run on sunny days. We've tried leash training Sidney, but she's not to happy with a harness on, but it might be a try for your kitty. Good luck!
